0
As close to virtually zero volts as is possible: the current will very small but there will be current.
This depends on two things: the material that is used to make the diode, and whether the voltage is applied in a forward or reverse direction to the diode. A typical silicon diode will pass forward current above 0.6 V and pass no reverse current until a much higher voltage is applied (check the rated peak inverse voltage PIV)
What else can I help you with?
What effect does a diode have on a series circuit in which the voltage source changes polarity periodically that is and alternating current circuit?
In a series circuit with an alternating current (AC) voltage source, a diode allows current to flow in only one direction, effectively converting the AC into direct current (DC). This means that during one half of the AC cycle, the diode conducts and allows current to pass, while during the other half, when the polarity reverses, the diode blocks the current. As a result, the output voltage across the diode will typically show a pulsating DC waveform, characterized by peaks corresponding to the positive half-cycles of the AC input. This rectification process is fundamental in power supply applications where DC is required.
What is a zener diod?
A Zener diode is a type of diode that sends current in the forward way like a normal diode, but also in the reverse direction if there is voltage that is larger than the breakdown voltage which is also known as "Zener voltage". The apparatus was named after Clarence Zener, who discovered this electrical property.
What is the difference between diode and resistors?
the resistance of a diode is .4 ohms is made of tantalum or .7 ohms if made of silicon. ANSWER: THE RESISTANCE OF A DIODE IS SIMPLY V/I the impedance however is defines by Boltzmann constant
How diode acts as clipper and clamber?
A diode acts as a clipper by preventing a portion of the input signal from passing through, effectively "clipping" the waveform at a certain voltage level. This is achieved by connecting the diode in such a way that it conducts only when the input voltage exceeds a specific threshold, allowing only the desired portion of the signal to pass. Conversely, a diode acts as a clamper by shifting the entire waveform up or down without altering its shape, typically by adding a DC offset. In this configuration, the diode allows for the movement of the signal to a new reference level while maintaining the original signal's amplitude and frequency characteristics.
How do you find the current rating of a zener diode if the power rating is 500mw and a voltage rating of 10v?
A zener diode with a rating of 500 mW will pass 50 mA at 10 V. (Power = voltage times current)Note: The question appears mis stated, in that it states a rating of 500 MW, not 500 mW. To my knowledge, there is no zener with a rating of 500 MW.
What is the condition that prevent the current to pass across diode?
if the voltage across the diode is less than the cut-in voltage of that particular diode .
What effect does a diode have on a series circuit in which the voltage source changes polarity periodically that is and alternating current circuit?
In a series circuit with an alternating current (AC) voltage source, a diode allows current to flow in only one direction, effectively converting the AC into direct current (DC). This means that during one half of the AC cycle, the diode conducts and allows current to pass, while during the other half, when the polarity reverses, the diode blocks the current. As a result, the output voltage across the diode will typically show a pulsating DC waveform, characterized by peaks corresponding to the positive half-cycles of the AC input. This rectification process is fundamental in power supply applications where DC is required.
What is the job of a diode?
A diode is used primarily as a Rectifier
What is meant by static and dynamic resistance?
static resistance: This is measured when diode id forward biased and input is a D.C signal. The ratio of voltage applied to the current flowing through diode gives static resistance Dynamic resistance : this is measured when input is A.C signal. since A.C signal varies continuously the resistance offered also changes continuously. the ratio of change in voltage to change in current gives dynamic resistance.
What is a zener diod?
A Zener diode is a type of diode that sends current in the forward way like a normal diode, but also in the reverse direction if there is voltage that is larger than the breakdown voltage which is also known as "Zener voltage". The apparatus was named after Clarence Zener, who discovered this electrical property.
What is break down voltage?
A rectifier diode normally allows current to pass in one direction (the forward direction), and almost no current in the opposite direction (the "reverse" direction). The diode is designed to work up to a certain voltage; if more than a certain voltage is applied in the reverse direction, it will "break down", and suddenly a large current will flow. This can irreparably damage the rectifier diode, unless it is of a type specifically designed to operate in the breakdown region - i.e., a Zener diode.
What is Zener diode function?
Zener diodes are widely used as voltage references and as shunt regulators to regulate the voltage across small circuits. When connected in parallel with a variable voltage source so that it is reverse biased, aZener diode conducts when the voltage reaches the diode's reverse breakdown voltage.
Why do you put a diode across a relay coil?
If the current through a coil is interrupted, the coil generates a high voltage (such as in the old car ignition coils). The diode provides a path for the current to decay naturally, thus avoiding the high voltage.
What is the difference between diode and resistors?
the resistance of a diode is .4 ohms is made of tantalum or .7 ohms if made of silicon. ANSWER: THE RESISTANCE OF A DIODE IS SIMPLY V/I the impedance however is defines by Boltzmann constant
What is the current that flows through an unloaded voltage divider?
The current that flows through an unloaded voltage divider is very small, close to zero. This is because there is no load connected to the output of the divider, so there is nowhere for the current to flow. The purpose of a voltage divider is to divide the input voltage between the two resistors, not to pass current.
How diode acts as clipper and clamber?
A diode acts as a clipper by preventing a portion of the input signal from passing through, effectively "clipping" the waveform at a certain voltage level. This is achieved by connecting the diode in such a way that it conducts only when the input voltage exceeds a specific threshold, allowing only the desired portion of the signal to pass. Conversely, a diode acts as a clamper by shifting the entire waveform up or down without altering its shape, typically by adding a DC offset. In this configuration, the diode allows for the movement of the signal to a new reference level while maintaining the original signal's amplitude and frequency characteristics.
How do you find the current rating of a zener diode if the power rating is 500mw and a voltage rating of 10v?
A zener diode with a rating of 500 mW will pass 50 mA at 10 V. (Power = voltage times current)Note: The question appears mis stated, in that it states a rating of 500 MW, not 500 mW. To my knowledge, there is no zener with a rating of 500 MW.
